Automobile radiator cap



April 22, 1930. F. 0. DE ALCOCER AUTOMOBILE RADIATOR CAP Filed Jan. 5,1928 INVENTOR WITNESSES ATTORNEY MzM Patented Apr. 22, 1930 PATENTOFFICE FRANCISCO 0. DE ALCOCER, OF LOS'ANGELES, CALIFORNIA AUTOMOBILEZRADIIIA'JEQIB. CA]? Application filed. January 5, 1928. Serial No.244,692.

This invention relates to automobile accessories and has particularreference to an improvement in radiator caps therefor. he inventionbroadly comprehends a radiator cap which is so constructed as to permitof the filling or addition of water to the cooling system of anautomobile without the necessity of removing the cap from the radiatornozzle, thereby eliminating the danger of scalding the person or injuryto the finish of the automobile which occurs when the cap is removedwhen the water in the cooling system reaches approximately the boilingpoint.

More specifically the invention compre- 1 hands a radiator cap equippedwith an outwardly closing, inwardly opening valved filling aperture withwhich a hose nozzle is adapted to be associated for introducing water orother cooling liquids to the cooling system.

Other objects reside in the simplicity of construction and mode of useof the invention, 1 the economy with which the same may be produced andinstalled and the general efficiency derived therefrom.

With the above recited and other objects in view, reference is had tothe following description and accompanying drawings in which there isexhibited certain example or embodiments of the invention, while the apvpended claims define the actual scope of the invention.

In the drawings- Figure 1 is an elevation partly in section of a hosenozzle adapted to be used in connection with the radiator capconstituting the present invention;

Fig. 2 is a fragmentary sectional view of a radiator filling nozzleequipped with a cap constructed in accordance with the invention Fig. 3is a side view of the cap removed;

Fig. 4: is a plan view of the cap;

Fig. 5 is a bottom plan view of a modified adaptation of the invention;

Fig. 6 is a vertical sectional view therethrough;

Fig. 7 is a further modified adaptation of the invention;

Figs. 8 and 9 are sectional views illustrating other uses to which theinvention may be adapted.

Referring to the drawings by characters of reference and particularly tothe form of the invention illustrated in Figs. 2, 3 and 4, the cap ispreferably constructed of elastic material including a substantiallyannular wall 10 having an annular groove 11. on its under side of a sizeto snugly fit the upper open end of the filling nozzle A of the radiatorB. At its outer periphery the wall 10 is preferably provided with a deending annular flange 12 which snugly fits t e outer periphery of thefilling nozzle A. The wall 10 is provided with a depending substantiallysemi-spherical boss 13, the uppermost inner portion 14 of which is offrusto-conical formation presenting an outwardly flaring socket, thepurpose of which will be hereinafter set forth. The

boss 13 is provided with crossed slits 15 which sub-divided the sameinto a plurality of elastic or resilient sections 16 which normallyclose under their inherent resiliency or elasticity to prevent theescape of steam, water, or other pressure which has developed within thecooling system, thereby forcing the steam or pressure to escape throughthe usual overflow pipe C. In introducin or supplying water or othercoolin liqui s-to the cooling system, use is made 0% a speciallydesigned nozzle 16, which is adapted to be attached to a hose b theinternal threaded portion 17 at one'enci The 0 posite end of the nozzleis provided with a f i'usto-conical por tion- 18 which is adapted to besnugly engaged within the frusto-conical socket 14 of the cap.

In addition to this the nozzle is provided with a sealing gasket or ring19 of a yieldable material which is arranged in a groove 20 adj acentthe upper enlarged end of'the frustoconical portion 18. 7 It thusfollows that when fresh cooling liquid is to be supplied to the. coolingsystem through the filling nozzle A, the frusto-conical portion 18 ofthe nozzle 16 is forcibly inserted in the frusto-conical socket 14 ofthe cap and the force of the water or liquid will spread or open theportions 16. It is obvious that when the system is full, water or liquidwill flow through the overflow pipe 0 so that the user mayknow thesystem is full. In view of the fact that the portions 16 close againstoutward pressures, steam or hot water is prevented'from escaping to in-I jure the person or mar the finish of the aut0- mobile.

In the modified form of the invention illustrated in Figs. 5 and 6, thecap 21 is preferably of metal and is provided with an internal annularshoulder 22 having an internal frusto-conical seat 28 against which avalve element 2st is normally seated by a spiralexpansion spring 25.Immediately above the shoulder 22 an elastic nozzle seat 26 is pro-Vided having an outwardly flaring aperture 27 for the reception of thehose nozzle'lG. In this instance the cap 21 is provided with externalthreads 28 adapted to engage in the internally threaded filling nozzleD.

In the form of the invention illustrated in Fig. 7, the cap 29 is ofmetal and is externally threaded at 30 at its lower end to engage withinan internally threaded filling nozzle. In this instance a valve element31 construct ed similarly to the valve element illustrated in theembodiment in Figs.2, 3 and 4.. is employed, said valve element beingsuitably anchored in the cap.

An upstanding deflector flange 32 is pro vided on the annular wall 10,the cap 21 or the cap 29, to deflect the wind and dust and to preventthe accumulation of dust, dirt or other foreign matter within thefilling nozzle. In practice this flange may be suitably ornamented so asto add to the attractiveness of the appearance of the cap.

Figs. 8 and 9 illustrate other uses to which the valve element 31illustrated in Fig. 7 may be employed, Where gases or liquids are to bemaintained at a certain point and passed therethrough from a hosetemporarily applied to the inlet side thereof.

What is claimed is:

1. A radiator filling cap includin a supply nozzle receivingwall-adapted or frictional liquid tight connection with a supply nozzleand a check valve associated with said wall movable to open position bythe pressure of the liquid flowing from the supply nozzle.

2. A radiator filling cap including a frustoconical supply nozzlereceiving Wall adapted for frictional liquid tight connection with afrusto-conical supply nozzle and a check valve associated with said wallmovable to open position by the pressure of the liquid flowing from thesupply nozzle.

3. A radiator filling cap including a frusto conical supply nozzlereceiving wall adapted 1 for frictional liquid tight connection with asupply nozzle and a check valve associated with said wall movable toopen position by the weight or pressure of said liquid, said valve andwall being formed integrally of resilient material.

4. A radiator filling cap including a frustoconical supply nozzlereceiving wall adapted with said wall movable to open position by theweight or pressure of said liquid, said valve and wall being formedintegrally of resilient material and being frictionally associated withthe radiator filling nozzle.

5. In a radiator cap, the combination of a resilient receiving walladapted for frictional liquid tightconnection with a supply nozzle and acheck valve associated with said wall movable to open position by theweight or pressure of said liquid, said valve and wall being formedintegrally of resilient material.

6. In a radiator filling cap, the combination of a supply nozzlecoupling receiving socket adapted for frictional liquid tight connectionwith a supply nozzle and a check valve operable by the pressure of theliquid, closing the inner end of said nozzle, said cap and check valvebeing constructed of a single piece of resilient material and said capbeing constructed to frictionally fit the filling nozzle of theradiator.

' Signed at Los Angeles, in the county of Los Angeles and State ofCalifornia, this 13th day of December, A. D. 1927.

FRANCISCO 0. DE ALCOCER.

